基于OMAPL138和FPGA构架的PC104主板检测系统

Mainboard Test System Based on OMAPL138 and FPGA Structure

摘要:

为了对PC104主板进行自动检测,分析了PC104主板工作原理及其总线时序,提出了一种基于ARM+FPGA的嵌入式检测系统的设计方案;该方案采用德州仪器(TI)双核架构的高性能芯片OMAPL138中的ARM核来实现检测系统的应用管理,DSP核实现数据的处理,并利用FPGA技术来实时采集PC104总线数据；检测系统在Linux操作系统下,通过人机交互方式实现了PC104主板的各种功能的自动检测;实验结果显示该检测快速可靠,为PC104主板的自动检测提供了一种有效的方法。

Abstract:

To test PC104 motherboard automatically, this paper analyzes the working principle of the PC104 motherboard and its bus timing, and puts forward a kind of embedded test system based on ARM + FPGA design scheme. The scheme is realized by using OMAPL138 chip ,which is a high performance chip of the Texas instruments (TI) dual-core architecture, its ARM kernel for test system management of application and DSP kernel for data processing, and using FPGA technology to acquire the real-time data of PC104 bus. Under the Linux operating system, Detection system realize the functions of automatic detection of PC104 motherboard by the man-machine interactive way . The experimental results show that the detection system is fast and reliable, which provides an effective method for automatic test of PC104 motherboard .